]>
Commit | Line | Data |
---|---|---|
5de219cc WS |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // Regulator driver for DA9063 PMIC series | |
4 | // | |
5 | // Copyright 2012 Dialog Semiconductors Ltd. | |
6 | // Copyright 2013 Philipp Zabel, Pengutronix | |
7 | // | |
8 | // Author: Krystian Garbaciak <krystian.garbaciak@diasemi.com> | |
ebf6dad0 | 9 | |
69ca3e58 KG |
10 | #include <linux/kernel.h> |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/err.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/of.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/regmap.h> | |
18 | #include <linux/regulator/driver.h> | |
19 | #include <linux/regulator/machine.h> | |
20 | #include <linux/regulator/of_regulator.h> | |
21 | #include <linux/mfd/da9063/core.h> | |
22 | #include <linux/mfd/da9063/pdata.h> | |
23 | #include <linux/mfd/da9063/registers.h> | |
24 | ||
25 | ||
26 | /* Definition for registering regmap bit fields using a mask */ | |
27 | #define BFIELD(_reg, _mask) \ | |
28 | REG_FIELD(_reg, __builtin_ffs((int)_mask) - 1, \ | |
29 | sizeof(unsigned int) * 8 - __builtin_clz((_mask)) - 1) | |
30 | ||
31 | /* Regulator capabilities and registers description */ | |
32 | struct da9063_regulator_info { | |
33 | struct regulator_desc desc; | |
34 | ||
69ca3e58 KG |
35 | /* DA9063 main register fields */ |
36 | struct reg_field mode; /* buck mode of operation */ | |
37 | struct reg_field suspend; | |
38 | struct reg_field sleep; | |
39 | struct reg_field suspend_sleep; | |
40 | unsigned int suspend_vsel_reg; | |
69ca3e58 KG |
41 | |
42 | /* DA9063 event detection bit */ | |
43 | struct reg_field oc_event; | |
44 | }; | |
45 | ||
46 | /* Macros for LDO */ | |
47 | #define DA9063_LDO(chip, regl_name, min_mV, step_mV, max_mV) \ | |
48 | .desc.id = chip##_ID_##regl_name, \ | |
49 | .desc.name = __stringify(chip##_##regl_name), \ | |
50 | .desc.ops = &da9063_ldo_ops, \ | |
51 | .desc.min_uV = (min_mV) * 1000, \ | |
52 | .desc.uV_step = (step_mV) * 1000, \ | |
ebf6dad0 ST |
53 | .desc.n_voltages = (((max_mV) - (min_mV))/(step_mV) + 1 \ |
54 | + (DA9063_V##regl_name##_BIAS)), \ | |
69ca3e58 KG |
55 | .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ |
56 | .desc.enable_mask = DA9063_LDO_EN, \ | |
57 | .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ | |
58 | .desc.vsel_mask = DA9063_V##regl_name##_MASK, \ | |
59 | .desc.linear_min_sel = DA9063_V##regl_name##_BIAS, \ | |
60 | .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_LDO_SL), \ | |
61 | .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_LDO_SL), \ | |
62 | .suspend_vsel_reg = DA9063_REG_V##regl_name##_B | |
63 | ||
64 | /* Macros for voltage DC/DC converters (BUCKs) */ | |
5b1f537e AL |
65 | #define DA9063_BUCK(chip, regl_name, min_mV, step_mV, max_mV, limits_array, \ |
66 | creg, cmask) \ | |
69ca3e58 KG |
67 | .desc.id = chip##_ID_##regl_name, \ |
68 | .desc.name = __stringify(chip##_##regl_name), \ | |
69 | .desc.ops = &da9063_buck_ops, \ | |
70 | .desc.min_uV = (min_mV) * 1000, \ | |
71 | .desc.uV_step = (step_mV) * 1000, \ | |
72 | .desc.n_voltages = ((max_mV) - (min_mV))/(step_mV) + 1, \ | |
5b1f537e AL |
73 | .desc.csel_reg = (creg), \ |
74 | .desc.csel_mask = (cmask), \ | |
75 | .desc.curr_table = limits_array, \ | |
76 | .desc.n_current_limits = ARRAY_SIZE(limits_array) | |
69ca3e58 KG |
77 | |
78 | #define DA9063_BUCK_COMMON_FIELDS(regl_name) \ | |
79 | .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ | |
80 | .desc.enable_mask = DA9063_BUCK_EN, \ | |
81 | .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ | |
82 | .desc.vsel_mask = DA9063_VBUCK_MASK, \ | |
83 | .desc.linear_min_sel = DA9063_VBUCK_BIAS, \ | |
84 | .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_BUCK_SL), \ | |
85 | .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_BUCK_SL), \ | |
86 | .suspend_vsel_reg = DA9063_REG_V##regl_name##_B, \ | |
87 | .mode = BFIELD(DA9063_REG_##regl_name##_CFG, DA9063_BUCK_MODE_MASK) | |
88 | ||
89 | /* Defines asignment of regulators info table to chip model */ | |
90 | struct da9063_dev_model { | |
91 | const struct da9063_regulator_info *regulator_info; | |
92 | unsigned n_regulators; | |
492510dd | 93 | enum da9063_type type; |
69ca3e58 KG |
94 | }; |
95 | ||
96 | /* Single regulator settings */ | |
97 | struct da9063_regulator { | |
98 | struct regulator_desc desc; | |
99 | struct regulator_dev *rdev; | |
100 | struct da9063 *hw; | |
101 | const struct da9063_regulator_info *info; | |
102 | ||
103 | struct regmap_field *mode; | |
104 | struct regmap_field *suspend; | |
105 | struct regmap_field *sleep; | |
106 | struct regmap_field *suspend_sleep; | |
69ca3e58 KG |
107 | }; |
108 | ||
109 | /* Encapsulates all information for the regulators driver */ | |
110 | struct da9063_regulators { | |
69ca3e58 KG |
111 | unsigned n_regulators; |
112 | /* Array size to be defined during init. Keep at end. */ | |
113 | struct da9063_regulator regulator[0]; | |
114 | }; | |
115 | ||
116 | /* BUCK modes for DA9063 */ | |
117 | enum { | |
118 | BUCK_MODE_MANUAL, /* 0 */ | |
119 | BUCK_MODE_SLEEP, /* 1 */ | |
120 | BUCK_MODE_SYNC, /* 2 */ | |
121 | BUCK_MODE_AUTO /* 3 */ | |
122 | }; | |
123 | ||
124 | /* Regulator operations */ | |
125 | ||
126 | /* Current limits array (in uA) for BCORE1, BCORE2, BPRO. | |
127 | Entry indexes corresponds to register values. */ | |
5b1f537e | 128 | static const unsigned int da9063_buck_a_limits[] = { |
69ca3e58 KG |
129 | 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000, |
130 | 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000 | |
131 | }; | |
132 | ||
133 | /* Current limits array (in uA) for BMEM, BIO, BPERI. | |
134 | Entry indexes corresponds to register values. */ | |
5b1f537e | 135 | static const unsigned int da9063_buck_b_limits[] = { |
69ca3e58 KG |
136 | 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000, |
137 | 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000 | |
138 | }; | |
139 | ||
140 | /* Current limits array (in uA) for merged BCORE1 and BCORE2. | |
141 | Entry indexes corresponds to register values. */ | |
5b1f537e | 142 | static const unsigned int da9063_bcores_merged_limits[] = { |
69ca3e58 KG |
143 | 1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2200000, 2400000, |
144 | 2600000, 2800000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000 | |
145 | }; | |
146 | ||
147 | /* Current limits array (in uA) for merged BMEM and BIO. | |
148 | Entry indexes corresponds to register values. */ | |
5b1f537e | 149 | static const unsigned int da9063_bmem_bio_merged_limits[] = { |
69ca3e58 KG |
150 | 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, |
151 | 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000 | |
152 | }; | |
153 | ||
69ca3e58 KG |
154 | static int da9063_buck_set_mode(struct regulator_dev *rdev, unsigned mode) |
155 | { | |
156 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
157 | unsigned val; | |
158 | ||
159 | switch (mode) { | |
160 | case REGULATOR_MODE_FAST: | |
161 | val = BUCK_MODE_SYNC; | |
162 | break; | |
163 | case REGULATOR_MODE_NORMAL: | |
164 | val = BUCK_MODE_AUTO; | |
165 | break; | |
166 | case REGULATOR_MODE_STANDBY: | |
167 | val = BUCK_MODE_SLEEP; | |
168 | break; | |
169 | default: | |
170 | return -EINVAL; | |
171 | } | |
172 | ||
173 | return regmap_field_write(regl->mode, val); | |
174 | } | |
175 | ||
176 | /* | |
177 | * Bucks use single mode register field for normal operation | |
178 | * and suspend state. | |
179 | * There are 3 modes to map to: FAST, NORMAL, and STANDBY. | |
180 | */ | |
181 | ||
182 | static unsigned da9063_buck_get_mode(struct regulator_dev *rdev) | |
183 | { | |
184 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
185 | struct regmap_field *field; | |
186 | unsigned int val, mode = 0; | |
187 | int ret; | |
188 | ||
189 | ret = regmap_field_read(regl->mode, &val); | |
190 | if (ret < 0) | |
191 | return ret; | |
192 | ||
193 | switch (val) { | |
194 | default: | |
195 | case BUCK_MODE_MANUAL: | |
196 | mode = REGULATOR_MODE_FAST | REGULATOR_MODE_STANDBY; | |
197 | /* Sleep flag bit decides the mode */ | |
198 | break; | |
199 | case BUCK_MODE_SLEEP: | |
200 | return REGULATOR_MODE_STANDBY; | |
201 | case BUCK_MODE_SYNC: | |
202 | return REGULATOR_MODE_FAST; | |
203 | case BUCK_MODE_AUTO: | |
204 | return REGULATOR_MODE_NORMAL; | |
205 | } | |
206 | ||
207 | /* Detect current regulator state */ | |
208 | ret = regmap_field_read(regl->suspend, &val); | |
209 | if (ret < 0) | |
210 | return 0; | |
211 | ||
212 | /* Read regulator mode from proper register, depending on state */ | |
213 | if (val) | |
214 | field = regl->suspend_sleep; | |
215 | else | |
216 | field = regl->sleep; | |
217 | ||
218 | ret = regmap_field_read(field, &val); | |
219 | if (ret < 0) | |
220 | return 0; | |
221 | ||
222 | if (val) | |
223 | mode &= REGULATOR_MODE_STANDBY; | |
224 | else | |
225 | mode &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_FAST; | |
226 | ||
227 | return mode; | |
228 | } | |
229 | ||
230 | /* | |
231 | * LDOs use sleep flags - one for normal and one for suspend state. | |
232 | * There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state. | |
233 | */ | |
234 | ||
235 | static int da9063_ldo_set_mode(struct regulator_dev *rdev, unsigned mode) | |
236 | { | |
237 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
238 | unsigned val; | |
239 | ||
240 | switch (mode) { | |
241 | case REGULATOR_MODE_NORMAL: | |
242 | val = 0; | |
243 | break; | |
244 | case REGULATOR_MODE_STANDBY: | |
245 | val = 1; | |
246 | break; | |
247 | default: | |
248 | return -EINVAL; | |
249 | } | |
250 | ||
251 | return regmap_field_write(regl->sleep, val); | |
252 | } | |
253 | ||
254 | static unsigned da9063_ldo_get_mode(struct regulator_dev *rdev) | |
255 | { | |
256 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
257 | struct regmap_field *field; | |
258 | int ret, val; | |
259 | ||
260 | /* Detect current regulator state */ | |
261 | ret = regmap_field_read(regl->suspend, &val); | |
262 | if (ret < 0) | |
263 | return 0; | |
264 | ||
265 | /* Read regulator mode from proper register, depending on state */ | |
266 | if (val) | |
267 | field = regl->suspend_sleep; | |
268 | else | |
269 | field = regl->sleep; | |
270 | ||
271 | ret = regmap_field_read(field, &val); | |
272 | if (ret < 0) | |
273 | return 0; | |
274 | ||
275 | if (val) | |
276 | return REGULATOR_MODE_STANDBY; | |
277 | else | |
278 | return REGULATOR_MODE_NORMAL; | |
279 | } | |
280 | ||
281 | static int da9063_buck_get_status(struct regulator_dev *rdev) | |
282 | { | |
283 | int ret = regulator_is_enabled_regmap(rdev); | |
284 | ||
285 | if (ret == 0) { | |
286 | ret = REGULATOR_STATUS_OFF; | |
287 | } else if (ret > 0) { | |
288 | ret = da9063_buck_get_mode(rdev); | |
289 | if (ret > 0) | |
290 | ret = regulator_mode_to_status(ret); | |
291 | else if (ret == 0) | |
292 | ret = -EIO; | |
293 | } | |
294 | ||
295 | return ret; | |
296 | } | |
297 | ||
298 | static int da9063_ldo_get_status(struct regulator_dev *rdev) | |
299 | { | |
300 | int ret = regulator_is_enabled_regmap(rdev); | |
301 | ||
302 | if (ret == 0) { | |
303 | ret = REGULATOR_STATUS_OFF; | |
304 | } else if (ret > 0) { | |
305 | ret = da9063_ldo_get_mode(rdev); | |
306 | if (ret > 0) | |
307 | ret = regulator_mode_to_status(ret); | |
308 | else if (ret == 0) | |
309 | ret = -EIO; | |
310 | } | |
311 | ||
312 | return ret; | |
313 | } | |
314 | ||
315 | static int da9063_set_suspend_voltage(struct regulator_dev *rdev, int uV) | |
316 | { | |
317 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
318 | const struct da9063_regulator_info *rinfo = regl->info; | |
319 | int ret, sel; | |
320 | ||
321 | sel = regulator_map_voltage_linear(rdev, uV, uV); | |
322 | if (sel < 0) | |
8a7963d5 | 323 | return sel; |
69ca3e58 KG |
324 | |
325 | sel <<= ffs(rdev->desc->vsel_mask) - 1; | |
326 | ||
327 | ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg, | |
328 | rdev->desc->vsel_mask, sel); | |
329 | ||
330 | return ret; | |
331 | } | |
332 | ||
333 | static int da9063_suspend_enable(struct regulator_dev *rdev) | |
334 | { | |
335 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
336 | ||
337 | return regmap_field_write(regl->suspend, 1); | |
338 | } | |
339 | ||
340 | static int da9063_suspend_disable(struct regulator_dev *rdev) | |
341 | { | |
342 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
343 | ||
344 | return regmap_field_write(regl->suspend, 0); | |
345 | } | |
346 | ||
347 | static int da9063_buck_set_suspend_mode(struct regulator_dev *rdev, unsigned mode) | |
348 | { | |
349 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
350 | int val; | |
351 | ||
352 | switch (mode) { | |
353 | case REGULATOR_MODE_FAST: | |
354 | val = BUCK_MODE_SYNC; | |
355 | break; | |
356 | case REGULATOR_MODE_NORMAL: | |
357 | val = BUCK_MODE_AUTO; | |
358 | break; | |
359 | case REGULATOR_MODE_STANDBY: | |
360 | val = BUCK_MODE_SLEEP; | |
361 | break; | |
362 | default: | |
363 | return -EINVAL; | |
364 | } | |
365 | ||
366 | return regmap_field_write(regl->mode, val); | |
367 | } | |
368 | ||
369 | static int da9063_ldo_set_suspend_mode(struct regulator_dev *rdev, unsigned mode) | |
370 | { | |
371 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
372 | unsigned val; | |
373 | ||
374 | switch (mode) { | |
375 | case REGULATOR_MODE_NORMAL: | |
376 | val = 0; | |
377 | break; | |
378 | case REGULATOR_MODE_STANDBY: | |
379 | val = 1; | |
380 | break; | |
381 | default: | |
382 | return -EINVAL; | |
383 | } | |
384 | ||
385 | return regmap_field_write(regl->suspend_sleep, val); | |
386 | } | |
387 | ||
71242b49 | 388 | static const struct regulator_ops da9063_buck_ops = { |
69ca3e58 KG |
389 | .enable = regulator_enable_regmap, |
390 | .disable = regulator_disable_regmap, | |
391 | .is_enabled = regulator_is_enabled_regmap, | |
392 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
393 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
394 | .list_voltage = regulator_list_voltage_linear, | |
5b1f537e AL |
395 | .set_current_limit = regulator_set_current_limit_regmap, |
396 | .get_current_limit = regulator_get_current_limit_regmap, | |
69ca3e58 KG |
397 | .set_mode = da9063_buck_set_mode, |
398 | .get_mode = da9063_buck_get_mode, | |
399 | .get_status = da9063_buck_get_status, | |
400 | .set_suspend_voltage = da9063_set_suspend_voltage, | |
401 | .set_suspend_enable = da9063_suspend_enable, | |
402 | .set_suspend_disable = da9063_suspend_disable, | |
403 | .set_suspend_mode = da9063_buck_set_suspend_mode, | |
404 | }; | |
405 | ||
71242b49 | 406 | static const struct regulator_ops da9063_ldo_ops = { |
69ca3e58 KG |
407 | .enable = regulator_enable_regmap, |
408 | .disable = regulator_disable_regmap, | |
409 | .is_enabled = regulator_is_enabled_regmap, | |
410 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
411 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
412 | .list_voltage = regulator_list_voltage_linear, | |
413 | .set_mode = da9063_ldo_set_mode, | |
414 | .get_mode = da9063_ldo_get_mode, | |
415 | .get_status = da9063_ldo_get_status, | |
416 | .set_suspend_voltage = da9063_set_suspend_voltage, | |
417 | .set_suspend_enable = da9063_suspend_enable, | |
418 | .set_suspend_disable = da9063_suspend_disable, | |
419 | .set_suspend_mode = da9063_ldo_set_suspend_mode, | |
420 | }; | |
421 | ||
422 | /* Info of regulators for DA9063 */ | |
423 | static const struct da9063_regulator_info da9063_regulator_info[] = { | |
424 | { | |
425 | DA9063_BUCK(DA9063, BCORE1, 300, 10, 1570, | |
5b1f537e AL |
426 | da9063_buck_a_limits, |
427 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK), | |
69ca3e58 KG |
428 | DA9063_BUCK_COMMON_FIELDS(BCORE1), |
429 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE1_SEL), | |
69ca3e58 KG |
430 | }, |
431 | { | |
432 | DA9063_BUCK(DA9063, BCORE2, 300, 10, 1570, | |
5b1f537e AL |
433 | da9063_buck_a_limits, |
434 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE2_ILIM_MASK), | |
69ca3e58 KG |
435 | DA9063_BUCK_COMMON_FIELDS(BCORE2), |
436 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE2_SEL), | |
69ca3e58 KG |
437 | }, |
438 | { | |
439 | DA9063_BUCK(DA9063, BPRO, 530, 10, 1800, | |
5b1f537e AL |
440 | da9063_buck_a_limits, |
441 | DA9063_REG_BUCK_ILIM_B, DA9063_BPRO_ILIM_MASK), | |
69ca3e58 KG |
442 | DA9063_BUCK_COMMON_FIELDS(BPRO), |
443 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBPRO_SEL), | |
69ca3e58 KG |
444 | }, |
445 | { | |
446 | DA9063_BUCK(DA9063, BMEM, 800, 20, 3340, | |
5b1f537e AL |
447 | da9063_buck_b_limits, |
448 | DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK), | |
69ca3e58 KG |
449 | DA9063_BUCK_COMMON_FIELDS(BMEM), |
450 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBMEM_SEL), | |
69ca3e58 KG |
451 | }, |
452 | { | |
453 | DA9063_BUCK(DA9063, BIO, 800, 20, 3340, | |
5b1f537e AL |
454 | da9063_buck_b_limits, |
455 | DA9063_REG_BUCK_ILIM_A, DA9063_BIO_ILIM_MASK), | |
69ca3e58 KG |
456 | DA9063_BUCK_COMMON_FIELDS(BIO), |
457 | .suspend = BFIELD(DA9063_REG_DVC_2, DA9063_VBIO_SEL), | |
69ca3e58 KG |
458 | }, |
459 | { | |
460 | DA9063_BUCK(DA9063, BPERI, 800, 20, 3340, | |
5b1f537e AL |
461 | da9063_buck_b_limits, |
462 | DA9063_REG_BUCK_ILIM_B, DA9063_BPERI_ILIM_MASK), | |
69ca3e58 KG |
463 | DA9063_BUCK_COMMON_FIELDS(BPERI), |
464 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBPERI_SEL), | |
69ca3e58 KG |
465 | }, |
466 | { | |
467 | DA9063_BUCK(DA9063, BCORES_MERGED, 300, 10, 1570, | |
5b1f537e AL |
468 | da9063_bcores_merged_limits, |
469 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK), | |
69ca3e58 KG |
470 | /* BCORES_MERGED uses the same register fields as BCORE1 */ |
471 | DA9063_BUCK_COMMON_FIELDS(BCORE1), | |
472 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE1_SEL), | |
69ca3e58 KG |
473 | }, |
474 | { | |
475 | DA9063_BUCK(DA9063, BMEM_BIO_MERGED, 800, 20, 3340, | |
5b1f537e AL |
476 | da9063_bmem_bio_merged_limits, |
477 | DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK), | |
69ca3e58 KG |
478 | /* BMEM_BIO_MERGED uses the same register fields as BMEM */ |
479 | DA9063_BUCK_COMMON_FIELDS(BMEM), | |
480 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBMEM_SEL), | |
69ca3e58 | 481 | }, |
1c892e38 MV |
482 | { |
483 | DA9063_LDO(DA9063, LDO3, 900, 20, 3440), | |
484 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO3_SEL), | |
485 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO3_LIM), | |
486 | }, | |
487 | { | |
488 | DA9063_LDO(DA9063, LDO7, 900, 50, 3600), | |
489 | .suspend = BFIELD(DA9063_REG_LDO7_CONT, DA9063_VLDO7_SEL), | |
490 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO7_LIM), | |
491 | }, | |
492 | { | |
493 | DA9063_LDO(DA9063, LDO8, 900, 50, 3600), | |
494 | .suspend = BFIELD(DA9063_REG_LDO8_CONT, DA9063_VLDO8_SEL), | |
495 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO8_LIM), | |
496 | }, | |
497 | { | |
498 | DA9063_LDO(DA9063, LDO9, 950, 50, 3600), | |
499 | .suspend = BFIELD(DA9063_REG_LDO9_CONT, DA9063_VLDO9_SEL), | |
500 | }, | |
501 | { | |
502 | DA9063_LDO(DA9063, LDO11, 900, 50, 3600), | |
503 | .suspend = BFIELD(DA9063_REG_LDO11_CONT, DA9063_VLDO11_SEL), | |
504 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO11_LIM), | |
505 | }, | |
506 | ||
507 | /* The following LDOs are present only on DA9063, not on DA9063L */ | |
69ca3e58 KG |
508 | { |
509 | DA9063_LDO(DA9063, LDO1, 600, 20, 1860), | |
510 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO1_SEL), | |
511 | }, | |
512 | { | |
513 | DA9063_LDO(DA9063, LDO2, 600, 20, 1860), | |
514 | .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO2_SEL), | |
515 | }, | |
69ca3e58 KG |
516 | { |
517 | DA9063_LDO(DA9063, LDO4, 900, 20, 3440), | |
518 | .suspend = BFIELD(DA9063_REG_DVC_2, DA9063_VLDO4_SEL), | |
519 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO4_LIM), | |
520 | }, | |
521 | { | |
522 | DA9063_LDO(DA9063, LDO5, 900, 50, 3600), | |
523 | .suspend = BFIELD(DA9063_REG_LDO5_CONT, DA9063_VLDO5_SEL), | |
524 | }, | |
525 | { | |
526 | DA9063_LDO(DA9063, LDO6, 900, 50, 3600), | |
527 | .suspend = BFIELD(DA9063_REG_LDO6_CONT, DA9063_VLDO6_SEL), | |
528 | }, | |
1c892e38 | 529 | |
69ca3e58 KG |
530 | { |
531 | DA9063_LDO(DA9063, LDO10, 900, 50, 3600), | |
532 | .suspend = BFIELD(DA9063_REG_LDO10_CONT, DA9063_VLDO10_SEL), | |
533 | }, | |
69ca3e58 KG |
534 | }; |
535 | ||
536 | /* Link chip model with regulators info table */ | |
537 | static struct da9063_dev_model regulators_models[] = { | |
538 | { | |
539 | .regulator_info = da9063_regulator_info, | |
540 | .n_regulators = ARRAY_SIZE(da9063_regulator_info), | |
492510dd | 541 | .type = PMIC_TYPE_DA9063, |
69ca3e58 | 542 | }, |
1c892e38 MV |
543 | { |
544 | .regulator_info = da9063_regulator_info, | |
545 | .n_regulators = ARRAY_SIZE(da9063_regulator_info) - 6, | |
546 | .type = PMIC_TYPE_DA9063L, | |
547 | }, | |
69ca3e58 KG |
548 | { } |
549 | }; | |
550 | ||
551 | /* Regulator interrupt handlers */ | |
632b3d62 | 552 | static irqreturn_t da9063_ldo_lim_event(int irq, void *data) |
69ca3e58 KG |
553 | { |
554 | struct da9063_regulators *regulators = data; | |
555 | struct da9063 *hw = regulators->regulator[0].hw; | |
556 | struct da9063_regulator *regl; | |
557 | int bits, i , ret; | |
558 | ||
559 | ret = regmap_read(hw->regmap, DA9063_REG_STATUS_D, &bits); | |
560 | if (ret < 0) | |
561 | return IRQ_NONE; | |
562 | ||
563 | for (i = regulators->n_regulators - 1; i >= 0; i--) { | |
564 | regl = ®ulators->regulator[i]; | |
565 | if (regl->info->oc_event.reg != DA9063_REG_STATUS_D) | |
566 | continue; | |
567 | ||
29d40b4a ST |
568 | if (BIT(regl->info->oc_event.lsb) & bits) { |
569 | regulator_lock(regl->rdev); | |
69ca3e58 KG |
570 | regulator_notifier_call_chain(regl->rdev, |
571 | REGULATOR_EVENT_OVER_CURRENT, NULL); | |
29d40b4a ST |
572 | regulator_unlock(regl->rdev); |
573 | } | |
69ca3e58 KG |
574 | } |
575 | ||
576 | return IRQ_HANDLED; | |
577 | } | |
578 | ||
579 | /* | |
580 | * Probing and Initialisation functions | |
581 | */ | |
582 | static const struct regulator_init_data *da9063_get_regulator_initdata( | |
583 | const struct da9063_regulators_pdata *regl_pdata, int id) | |
584 | { | |
585 | int i; | |
586 | ||
587 | for (i = 0; i < regl_pdata->n_regulators; i++) { | |
588 | if (id == regl_pdata->regulator_data[i].id) | |
589 | return regl_pdata->regulator_data[i].initdata; | |
590 | } | |
591 | ||
592 | return NULL; | |
593 | } | |
594 | ||
595 | #ifdef CONFIG_OF | |
596 | static struct of_regulator_match da9063_matches[] = { | |
597 | [DA9063_ID_BCORE1] = { .name = "bcore1" }, | |
598 | [DA9063_ID_BCORE2] = { .name = "bcore2" }, | |
599 | [DA9063_ID_BPRO] = { .name = "bpro", }, | |
600 | [DA9063_ID_BMEM] = { .name = "bmem", }, | |
601 | [DA9063_ID_BIO] = { .name = "bio", }, | |
602 | [DA9063_ID_BPERI] = { .name = "bperi", }, | |
603 | [DA9063_ID_BCORES_MERGED] = { .name = "bcores-merged" }, | |
604 | [DA9063_ID_BMEM_BIO_MERGED] = { .name = "bmem-bio-merged", }, | |
1c892e38 MV |
605 | [DA9063_ID_LDO3] = { .name = "ldo3", }, |
606 | [DA9063_ID_LDO7] = { .name = "ldo7", }, | |
607 | [DA9063_ID_LDO8] = { .name = "ldo8", }, | |
608 | [DA9063_ID_LDO9] = { .name = "ldo9", }, | |
609 | [DA9063_ID_LDO11] = { .name = "ldo11", }, | |
610 | /* The following LDOs are present only on DA9063, not on DA9063L */ | |
69ca3e58 KG |
611 | [DA9063_ID_LDO1] = { .name = "ldo1", }, |
612 | [DA9063_ID_LDO2] = { .name = "ldo2", }, | |
69ca3e58 KG |
613 | [DA9063_ID_LDO4] = { .name = "ldo4", }, |
614 | [DA9063_ID_LDO5] = { .name = "ldo5", }, | |
615 | [DA9063_ID_LDO6] = { .name = "ldo6", }, | |
69ca3e58 | 616 | [DA9063_ID_LDO10] = { .name = "ldo10", }, |
69ca3e58 KG |
617 | }; |
618 | ||
619 | static struct da9063_regulators_pdata *da9063_parse_regulators_dt( | |
620 | struct platform_device *pdev, | |
621 | struct of_regulator_match **da9063_reg_matches) | |
622 | { | |
1c892e38 | 623 | struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent); |
69ca3e58 KG |
624 | struct da9063_regulators_pdata *pdata; |
625 | struct da9063_regulator_data *rdata; | |
626 | struct device_node *node; | |
1c892e38 | 627 | int da9063_matches_len = ARRAY_SIZE(da9063_matches); |
69ca3e58 KG |
628 | int i, n, num; |
629 | ||
1c892e38 MV |
630 | if (da9063->type == PMIC_TYPE_DA9063L) |
631 | da9063_matches_len -= 6; | |
632 | ||
25cc275a | 633 | node = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); |
69ca3e58 KG |
634 | if (!node) { |
635 | dev_err(&pdev->dev, "Regulators device node not found\n"); | |
636 | return ERR_PTR(-ENODEV); | |
637 | } | |
638 | ||
639 | num = of_regulator_match(&pdev->dev, node, da9063_matches, | |
1c892e38 | 640 | da9063_matches_len); |
2da8215c | 641 | of_node_put(node); |
69ca3e58 KG |
642 | if (num < 0) { |
643 | dev_err(&pdev->dev, "Failed to match regulators\n"); | |
644 | return ERR_PTR(-EINVAL); | |
645 | } | |
646 | ||
647 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); | |
648 | if (!pdata) | |
649 | return ERR_PTR(-ENOMEM); | |
650 | ||
a86854d0 KC |
651 | pdata->regulator_data = devm_kcalloc(&pdev->dev, |
652 | num, sizeof(*pdata->regulator_data), | |
69ca3e58 KG |
653 | GFP_KERNEL); |
654 | if (!pdata->regulator_data) | |
655 | return ERR_PTR(-ENOMEM); | |
656 | pdata->n_regulators = num; | |
657 | ||
658 | n = 0; | |
1c892e38 | 659 | for (i = 0; i < da9063_matches_len; i++) { |
69ca3e58 KG |
660 | if (!da9063_matches[i].init_data) |
661 | continue; | |
662 | ||
663 | rdata = &pdata->regulator_data[n]; | |
664 | rdata->id = i; | |
665 | rdata->initdata = da9063_matches[i].init_data; | |
666 | ||
667 | n++; | |
424fb281 | 668 | } |
69ca3e58 KG |
669 | |
670 | *da9063_reg_matches = da9063_matches; | |
671 | return pdata; | |
672 | } | |
673 | #else | |
674 | static struct da9063_regulators_pdata *da9063_parse_regulators_dt( | |
675 | struct platform_device *pdev, | |
676 | struct of_regulator_match **da9063_reg_matches) | |
677 | { | |
f377ed10 | 678 | *da9063_reg_matches = NULL; |
e8cb204c | 679 | return ERR_PTR(-ENODEV); |
69ca3e58 KG |
680 | } |
681 | #endif | |
682 | ||
683 | static int da9063_regulator_probe(struct platform_device *pdev) | |
684 | { | |
685 | struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent); | |
686 | struct da9063_pdata *da9063_pdata = dev_get_platdata(da9063->dev); | |
0fdfd40a | 687 | struct of_regulator_match *da9063_reg_matches = NULL; |
69ca3e58 KG |
688 | struct da9063_regulators_pdata *regl_pdata; |
689 | const struct da9063_dev_model *model; | |
690 | struct da9063_regulators *regulators; | |
691 | struct da9063_regulator *regl; | |
692 | struct regulator_config config; | |
693 | bool bcores_merged, bmem_bio_merged; | |
694 | int id, irq, n, n_regulators, ret, val; | |
69ca3e58 KG |
695 | |
696 | regl_pdata = da9063_pdata ? da9063_pdata->regulators_pdata : NULL; | |
697 | ||
698 | if (!regl_pdata) | |
699 | regl_pdata = da9063_parse_regulators_dt(pdev, | |
700 | &da9063_reg_matches); | |
701 | ||
702 | if (IS_ERR(regl_pdata) || regl_pdata->n_regulators == 0) { | |
703 | dev_err(&pdev->dev, | |
704 | "No regulators defined for the platform\n"); | |
b6615659 | 705 | return -ENODEV; |
69ca3e58 KG |
706 | } |
707 | ||
708 | /* Find regulators set for particular device model */ | |
709 | for (model = regulators_models; model->regulator_info; model++) { | |
492510dd | 710 | if (model->type == da9063->type) |
69ca3e58 KG |
711 | break; |
712 | } | |
713 | if (!model->regulator_info) { | |
714 | dev_err(&pdev->dev, "Chip model not recognised (%u)\n", | |
492510dd | 715 | da9063->type); |
69ca3e58 KG |
716 | return -ENODEV; |
717 | } | |
718 | ||
719 | ret = regmap_read(da9063->regmap, DA9063_REG_CONFIG_H, &val); | |
720 | if (ret < 0) { | |
721 | dev_err(&pdev->dev, | |
722 | "Error while reading BUCKs configuration\n"); | |
8a7963d5 | 723 | return ret; |
69ca3e58 KG |
724 | } |
725 | bcores_merged = val & DA9063_BCORE_MERGE; | |
726 | bmem_bio_merged = val & DA9063_BUCK_MERGE; | |
727 | ||
728 | n_regulators = model->n_regulators; | |
729 | if (bcores_merged) | |
730 | n_regulators -= 2; /* remove BCORE1, BCORE2 */ | |
731 | else | |
732 | n_regulators--; /* remove BCORES_MERGED */ | |
733 | if (bmem_bio_merged) | |
734 | n_regulators -= 2; /* remove BMEM, BIO */ | |
735 | else | |
736 | n_regulators--; /* remove BMEM_BIO_MERGED */ | |
737 | ||
738 | /* Allocate memory required by usable regulators */ | |
ac227fb5 GS |
739 | regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, |
740 | regulator, n_regulators), GFP_KERNEL); | |
8b5baa56 | 741 | if (!regulators) |
69ca3e58 | 742 | return -ENOMEM; |
69ca3e58 KG |
743 | |
744 | regulators->n_regulators = n_regulators; | |
745 | platform_set_drvdata(pdev, regulators); | |
746 | ||
747 | /* Register all regulators declared in platform information */ | |
748 | n = 0; | |
749 | id = 0; | |
750 | while (n < regulators->n_regulators) { | |
751 | /* Skip regulator IDs depending on merge mode configuration */ | |
752 | switch (id) { | |
753 | case DA9063_ID_BCORE1: | |
754 | case DA9063_ID_BCORE2: | |
755 | if (bcores_merged) { | |
756 | id++; | |
757 | continue; | |
758 | } | |
759 | break; | |
760 | case DA9063_ID_BMEM: | |
761 | case DA9063_ID_BIO: | |
762 | if (bmem_bio_merged) { | |
763 | id++; | |
764 | continue; | |
765 | } | |
766 | break; | |
767 | case DA9063_ID_BCORES_MERGED: | |
768 | if (!bcores_merged) { | |
769 | id++; | |
770 | continue; | |
771 | } | |
772 | break; | |
773 | case DA9063_ID_BMEM_BIO_MERGED: | |
774 | if (!bmem_bio_merged) { | |
775 | id++; | |
776 | continue; | |
777 | } | |
778 | break; | |
779 | } | |
780 | ||
781 | /* Initialise regulator structure */ | |
782 | regl = ®ulators->regulator[n]; | |
783 | regl->hw = da9063; | |
784 | regl->info = &model->regulator_info[id]; | |
785 | regl->desc = regl->info->desc; | |
786 | regl->desc.type = REGULATOR_VOLTAGE; | |
787 | regl->desc.owner = THIS_MODULE; | |
788 | ||
84592039 | 789 | if (regl->info->mode.reg) { |
69ca3e58 KG |
790 | regl->mode = devm_regmap_field_alloc(&pdev->dev, |
791 | da9063->regmap, regl->info->mode); | |
84592039 AL |
792 | if (IS_ERR(regl->mode)) |
793 | return PTR_ERR(regl->mode); | |
794 | } | |
795 | ||
796 | if (regl->info->suspend.reg) { | |
69ca3e58 KG |
797 | regl->suspend = devm_regmap_field_alloc(&pdev->dev, |
798 | da9063->regmap, regl->info->suspend); | |
84592039 AL |
799 | if (IS_ERR(regl->suspend)) |
800 | return PTR_ERR(regl->suspend); | |
801 | } | |
802 | ||
803 | if (regl->info->sleep.reg) { | |
69ca3e58 KG |
804 | regl->sleep = devm_regmap_field_alloc(&pdev->dev, |
805 | da9063->regmap, regl->info->sleep); | |
84592039 AL |
806 | if (IS_ERR(regl->sleep)) |
807 | return PTR_ERR(regl->sleep); | |
808 | } | |
809 | ||
810 | if (regl->info->suspend_sleep.reg) { | |
69ca3e58 KG |
811 | regl->suspend_sleep = devm_regmap_field_alloc(&pdev->dev, |
812 | da9063->regmap, regl->info->suspend_sleep); | |
84592039 AL |
813 | if (IS_ERR(regl->suspend_sleep)) |
814 | return PTR_ERR(regl->suspend_sleep); | |
815 | } | |
816 | ||
69ca3e58 KG |
817 | /* Register regulator */ |
818 | memset(&config, 0, sizeof(config)); | |
819 | config.dev = &pdev->dev; | |
820 | config.init_data = da9063_get_regulator_initdata(regl_pdata, id); | |
821 | config.driver_data = regl; | |
822 | if (da9063_reg_matches) | |
823 | config.of_node = da9063_reg_matches[id].of_node; | |
824 | config.regmap = da9063->regmap; | |
e97bba91 JH |
825 | regl->rdev = devm_regulator_register(&pdev->dev, ®l->desc, |
826 | &config); | |
e515800b | 827 | if (IS_ERR(regl->rdev)) { |
69ca3e58 KG |
828 | dev_err(&pdev->dev, |
829 | "Failed to register %s regulator\n", | |
830 | regl->desc.name); | |
e97bba91 | 831 | return PTR_ERR(regl->rdev); |
69ca3e58 KG |
832 | } |
833 | id++; | |
834 | n++; | |
835 | } | |
836 | ||
837 | /* LDOs overcurrent event support */ | |
838 | irq = platform_get_irq_byname(pdev, "LDO_LIM"); | |
839 | if (irq < 0) { | |
69ca3e58 | 840 | dev_err(&pdev->dev, "Failed to get IRQ.\n"); |
e97bba91 | 841 | return irq; |
69ca3e58 KG |
842 | } |
843 | ||
d87aef91 | 844 | ret = devm_request_threaded_irq(&pdev->dev, irq, |
8ad365c9 DL |
845 | NULL, da9063_ldo_lim_event, |
846 | IRQF_TRIGGER_LOW | IRQF_ONESHOT, | |
847 | "LDO_LIM", regulators); | |
848 | if (ret) { | |
d87aef91 AL |
849 | dev_err(&pdev->dev, "Failed to request LDO_LIM IRQ.\n"); |
850 | return ret; | |
69ca3e58 KG |
851 | } |
852 | ||
853 | return 0; | |
69ca3e58 KG |
854 | } |
855 | ||
69ca3e58 KG |
856 | static struct platform_driver da9063_regulator_driver = { |
857 | .driver = { | |
858 | .name = DA9063_DRVNAME_REGULATORS, | |
69ca3e58 KG |
859 | }, |
860 | .probe = da9063_regulator_probe, | |
69ca3e58 KG |
861 | }; |
862 | ||
863 | static int __init da9063_regulator_init(void) | |
864 | { | |
865 | return platform_driver_register(&da9063_regulator_driver); | |
866 | } | |
867 | subsys_initcall(da9063_regulator_init); | |
868 | ||
869 | static void __exit da9063_regulator_cleanup(void) | |
870 | { | |
871 | platform_driver_unregister(&da9063_regulator_driver); | |
872 | } | |
873 | module_exit(da9063_regulator_cleanup); | |
874 | ||
875 | ||
876 | /* Module information */ | |
877 | MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>"); | |
878 | MODULE_DESCRIPTION("DA9063 regulators driver"); | |
879 | MODULE_LICENSE("GPL"); | |
ac40b441 | 880 | MODULE_ALIAS("platform:" DA9063_DRVNAME_REGULATORS); |